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一般描述
与QuEChERS LC-MS 方法的传统相相比，Supel™ QuE Z-Sep/C18可有效去除样本萃取物中更多的脂肪和颜色，从而提高样本对复杂基质的清除能力。通过消除有问题的基质干扰，Z-Sep 产品提供了更稳健的 LC-MS 方法。这种专有技术可以替代当前方法中的C18和PSA，无需额外的方法开发。
建议使用 Z-Sep/C18 清除脂肪含量低于 15% 的样本。
建议使用 Z-Sep/C18 清除脂肪含量低于 15% 的样本。
分散SPE法，通常也是指"QuEChERS” 方法（快速，简便，便宜，有效，耐用和安全），是一种现代样本准备技术，正在越来越多地被用在食品和农业产品多残基杀虫剂分析领域。
使用QuEChERS方法，食品/农产品样本首先在水溶性溶剂（比如乙腈），在高盐（比如氯化钠和硫酸镁）和或者缓冲试剂（比如柠檬酸盐）存在下，进行提取。高盐能够引起液相分离，而缓冲试剂能够稳定酸碱不稳定杀虫剂。 在摇晃和离心之后，有机相部分就进一步用SPE清洁。 和传统的SPE管方法不同，在分散SPE中，清洁需要混合大量的SPE（比如Supelclean PSA, ENVI-Carb， 和或者Discovery DSC-18）和提取物。 在样本清洁后，混合物经过离心，得到的上清可以直接分析，或者在分析前需要很少的处理。
Supelco有一系列的管和离心管，含有预置量的盐和SPE吸附剂，能够支持现今最常用的方法。
使用QuEChERS方法，食品/农产品样本首先在水溶性溶剂（比如乙腈），在高盐（比如氯化钠和硫酸镁）和或者缓冲试剂（比如柠檬酸盐）存在下，进行提取。高盐能够引起液相分离，而缓冲试剂能够稳定酸碱不稳定杀虫剂。 在摇晃和离心之后，有机相部分就进一步用SPE清洁。 和传统的SPE管方法不同，在分散SPE中，清洁需要混合大量的SPE（比如Supelclean PSA, ENVI-Carb， 和或者Discovery DSC-18）和提取物。 在样本清洁后，混合物经过离心，得到的上清可以直接分析，或者在分析前需要很少的处理。
Supelco有一系列的管和离心管，含有预置量的盐和SPE吸附剂，能够支持现今最常用的方法。
法律信息
本产品的某些用途可能包含在一项或多项未决专利申请的权利要求中。有关许可质询，请联系 [email protected]
AOAC is a registered trademark of AOAC International
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
Supel is a trademark of Sigma-Aldrich Co. LLC
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
其他客户在看
Lucía Geis-Asteggiante et al.
Journal of chromatography. A, 1258, 43-54 (2012-09-05)
In this study, optimization, extension, and validation of a streamlined, qualitative and quantitative multiclass, multiresidue method was conducted to monitor >100 veterinary drug residues in meat using ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Optimization centered on extensive ruggedness evaluation of
Ana Lozano et al.
Talanta, 118, 68-83 (2013-11-28)
Two sorbents containing ZrO₂ (Z-Sep and Z-Sep+) were tested as a d-SPE clean-up in combination with the QuEChERS and ethyl acetate multiresidue method in the pesticide residues extraction in avocado. All extracts were analysed using gas chromatography coupled with a
Piotr Kaczynski et al.
Ecotoxicology and environmental safety, 139, 124-131 (2017-01-28)
Highly toxic insecticides (HTIs) belonging to different chemical groups are dangerous to pollinating organisms, even in sublethal doses. An important objective of this study was to develop a method to determine over fifty HTIs at very low concentrations in the
Yin-E Liu et al.
Journal of chromatography. A, 1532, 68-73 (2017-12-13)
An analytical method has been developed for measuring 12 organophosphorus flame retardants (PFRs) in fish tissue samples. After the Soxhlet extraction of PFRs with dichloromethane. The experimental parameters of the clean-up were systematically optimized. Methanol was found to be a
Pol Herrero et al.
Journal of chromatography. A, 1339, 34-41 (2014-03-25)
A Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) extraction method followed by liquid chromatography-(Orbitrap) high resolution mass spectrometry was developed for the simultaneous determination of five benzotriazole, four benzothiazole and five benzenesulfonamide derivates in sewage sludge. While the method
相关内容
The comparison of Supel™ QuE Z-Sep/C18, PSA/C18, and PSA QuEChERS sorbents, in terms of color removal and analyte recovery, is described for the cleanup of oranges prior to pesticide analysis.
Z-Sep sorbents improve fat and pigment extraction in QuEChERs solid phase extraction for sample preparation.
Chromatograms
application for HPLCActive Filters
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